Liquid-heater.



W. R. STOCKWELL.

LIQUID HEATER.

APPLICATION FILED JANQZQ, 1913.

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W. R. STOGKWELL.

LIQUID HEATER.

APPLICATION FILED JAN. 29, 1913.

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WILLIAllT R. STOCKVTELL, 0F IRVINGTON, NEW YORK.

LIQUID-HEATER.

Application filed January 29, 1913.

To all whom it may concern:

Be it known that l, VVILLrAM R. STOCK- wnL-L, a citizen of the United States, and resident of lrvington-on-Hudson, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Liquid-Heaters, of which the following is a specification.

Devices for heating liquids in fluid tight conduits for the purpose of using the heat energy produced therein, comprise, among other arrangements, sectional boilers whose sections are superimposed and lie substantially in a horizontal plane. These sectional boilers are divided into steam and water boilers, the principal difference of which consists in the provision in steam boilers of a comparatively large dome section for holding steam and preventing boiling over and water going into the pipes of the heating system while water boilers require only a much smaller dome.

In order to increase the capacity of a boiler of this type, it has been the practice to increase the number of the superimposed sections and, thereby enlarge the volume of water subjected to the heat of the fire box and its fines. In examining a vertical cross sectional view of such a boiler, it will be observed that the combustion chamber top, as a rule, is integral with the fire box, and has a flue opening, normally located at the rear of the boiler, while the dome section has its flue, leading into the smoke box, located either at the front or rear of the top of the boiler. The addition of intermediate sections requires a change of position of the flue of the dome section, as for instance, a boiler having one, three or five intermediate sections has this flue located in the rear, while a boiler having none, two, four or six intermediate sections, has this flue located in the front.

In order to provide proper openings for the clean out doors between the several sections, it became necessary to have at least two different patterns of the dome section. one pattern having the flue in the front and the other having it in the rear.- According to the number of intermediate sections, arranged in a boiler, one or the other dome section was used.

It has been found desirable to have the flue of the dome section preferably in the rear, for various reasons, particularly so as not to obstruct the front of the dome. This Specification of Letters Patent.

Patented Feb. 16, 1915.

Seria1No. 74.4,a00.

would also eliminate the employment of more than one pattern for the dome, and in order to accomplish this, the present invention has as one of its objects the separation of the combustion chamber top from the combustion chamber proper, whereby the same becomes reversible, so that, whatever the number of intermediate sections employed in a boiler, the position of the combustion chamber top with its flue opening either in the front or in the rear, will permit the use of a dome section having a rear flue.

The combustion chamber top is provided with a number of annular flutes or corrugations, by means of which the surface, in actual contact with the fire, is extended considerably, which is another object of the present invention.

Front and rear clean out doors are provided for permitting the proper cleaning of the fines between the intermediate sections and the entire arrangement represents a sectional boiler of great efliciency, simplicity of construction and economy of operation.

The invention is shown in the accompany ing drawings, in which,

Figure 1, is a rear elevation and partly a vertical cross section of the boiler, Fig. 2 a vertical cross sectional view through the axis of the boiler in a plane at right angles to the cross section, shown in Fig. 1, Fig. 3, a View similar to that shown in Fig. 1, having the combustion chamber top in reversed position, and Fig. 4, a bottom view of the combustion chamber top. a

The round sectional boiler comprises a base section 1, with the usual ash pit 2 and, preferably, triangular revolving grate bars 3. The combustion chamber is indicated at l, having a fire box door at 5, and being surrounded by a water jacket 6, which latter effectively prevents the disintegration by fire of the walls of the fire box and increases the efliciency of the boiler by exposing a larger water surface to the heat in the combustion chamber; The combustion chamber a is covered by the combustion chamber top 7, having the nipple sections 8, a flue opening 9 and the annular corrugations 10. The intermediate sections are indicated at 11, and the dome section at 12. All the sections are connected by means of push nipples, as well known in the art, and held together by outside tie bolts, not shown in the drawings.

The connections 13 lead to the pipe system of the building, the flue 14 of the dome sec tion is connected to the usual smoke box, notshown, and the boiler is provided with the front clean out doors 15 and the rear clean out doors 16.

In comparing Figs. 2 and 3, it will be noted that the combustion chamber top is so constructed that it becomes reversible. Its flue opening is either in the front or the rear of the combustion chamber, according to the number of intermediate sections desired to be used in the construction of the boiler. Fig. 2 illustrates a boiler without any intermediate section and the position of the combustion chamber top with its flue opening in front, would be maintained, in case two, four or any other even number of intermediate sections should be added. Fig. 3, however, shows the combustion chamber top in reverse position, 2'. 6., with its flue opening in the rear, which position would remain the same, should one, three or any other odd number of intermediate sections be used in the construction of the boiler.

The annular corrugations of the lower side of the combustion chamber top are of great efiiciency in increasing the actual fire surface, besides forming a casting which can be easier molded and is less expensive than the castings heretofore in use, having parallel corrugations.

Claims.

1. The combination with a combustion chamber, of a combustion chamber top, a dome section and one or more intermediate sections, the combustion chamber top, the

dome section and the intermediate sections being provided with flue-openings, and the combustion chamber top being reversible, so that the flue-opening of the dome section is always located in the rear, irrespective of the number of sections placed between said combustion chamber top and said dome section.

2. The combination with a combustion chamber, of a Water jacket thereon, a combustion chamber top, one or more intermediate sections superimposed on said combustion chamber top, a water space in said combustion chamber top and in each of said sections, ports for interconnecting the water spaces of said combustion chamber top, intermediate sections and water jacket, a dome section, a flue-opening in each of said intermediate sections, said combustion chamber top and said dome section and alternately located in the front and rear, respectively, said combustion chamber top being reversible, so that the flue opening of the dome section is always located in the rear, irrespective of the number of intermediate sections placed between said combustion chamber top and said dome section.

In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses, at New York, in the county of New York and State of New York, this 22d day of January, 1918.

WILLIAM R. STOCKWELL.

In presence of RALPH JULIAN SAoHnRs, G. M. GRINDLAY.

Copies of this patent may beobtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

